This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-etherpad-13.0-wheezy-i386-ovf.zip.sig gpg: Signature made Tue Oct 15 15:53:40 UTC 2013 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key" For your convenience we also include file checksums: * sha1sum 4f7968719d9b0e1bd392b87d764574dff129d76b * md5sum 35f4b8fbf898f3e8f4d958dc1c03d00e You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJSXWT2AAoJEIXCXpWhbrlNf4QIAKZSvGba7vMUQOVqWh4SzipR TsUPp1eEkdENrcYS7gP5Sn8iMdRuW92/nSrCqxngKsrfRvJkYlCM3LwJWEifb8Wq UrzT9fvMaQoYhaE3nnNRp9w4tL0KhvwBA3ZeumubWiSb9AMsUfD3+p+I1i4i5+2L N7NSDkRUQudjr9C2KCf92BPozw0D4qQJeTSP/zJeeyhGH9P4cjeoyDH7VmFvdjo1 l7Ov+dDxw5qiQYrJy/D1hBubliQcbkIW//cE4mtq0L5BbaA/pFw44gjSA4g6ReS/ +JPVGVkIB8JCRj3TwbtavedXV/msP8wJT1fmiCu8pSWHn3Ke00cxHD2JYTK8a0M= =WgtJ -----END PGP SIGNATURE-----